21/03/2006 - Environment
Agency Wales and Gwynedd Council have recently completed
a study of the Afon Adda in Bangor for the long-term
management of flood risk to the city.
The Afon Adda is a watercourse
that runs in a culvert beneath the city of Bangor
to the outfall at the harbour. The study has reviewed
the condition of the culvert, assessed the potential
extent of flood events and determined whether a
Flood Alleviation Scheme should be progressed.
Following the results of the study,
which indicated that the culvert was in poor condition
and that there were restrictions to the water flow,
a suggested scheme to provide a 1 in 100-year standard
of protection will be presented to the public for
discussion.
Details of the scheme can be viewed
at the Bangor Public Library from the 15 March to
the 17 March. The public exhibition was part of
a wider engagement with the local community where
they can be given the opportunity to express their
views.
The scheme involves a number of
solutions to alleviate culvert flooding, including:
• Areas of culvert considered
at most risk of collapse will be replaced or repaired
• The two rural inflow pipes will
be upsized to increase capacity and the necessary
debris screens and silt traps will be installed
at both pipe inlets to reduce the risk of future
blockages
• Lengths of larger culvert sections
will be installed to provide extra capacity at existing
pinch points
• A flood storage area upstream
of rural inflow at Bryn-Llwyd could also be constructed
The public display at Bangor Public
Library will be open from 10am-7pm Wednesday 15
and Thursday 16 March and from 10am to 5pm on Friday
17 March and officers from the Environment Agency
and Gwynedd Council will be present to answer questions.
